sin40= .643, sin25 = .422, cos40 = .766, and cos25 = .906, calculate the following: Sin15 and sin80
sin40= .643, sin25 = .422, cos40 = .766, and cos25 = .906, calculate the following: Sin15 and sin80
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Question
If sin40= .643, sin25 = .422, cos40 = .766, and cos25 = .906, calculate the following:
Sin15 and sin80
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